Researchers have discovered three ultra-massive galaxies from the universe's first billion years, challenging existing models of star formation. These galaxies, identified with the James Webb Space ...

For a long time, astronomers believed galaxy formation followed a very specific model: cosmic gas collects in clumps, stars ...

Marek Karliner and Jonathan Rosner ask what makes tetraquarks and pentaquarks tick, revealing them to be at times exotic ...